It is made from high-tech zirconia material with high density and high hardness; it is indestructible with hardness(HRA87), ranking only second to diamond and its abrasive resistance is the 60 times of metal knife; It maintains the original color and flavor of food, and help clients enjoy the taste of food without any chemical reaction with food; Good performance:with its high compactness, smoothness and cleanness, its knife face is not easy to produce bacteria; it is neat and tidy to cut fish, meat ,fruit, vegetables and so on; It is antibacterial, antifouling, and easy to clean; Elegant appearance: its appearance is as soft and glossy as jade, with delicate texture and noble enjoyment.